An engineer died and was mistakenly sent to hell. Fairly quickly, he had redesigned the place. Hell cooled down considerably thanks to the air conditioning he built and installed. The escalators and elevators worked just fine. Manual labor was quickly becoming a thing of the past.

God looked down one day and noticed all the changes. He called down to the devil to ask how these improvements came about.

The devil replied, "That engineer you sent me."

"What engineer? You're not supposed to have an engineer. Send him back up here!"

The devil's answer was simple... "No."

"If you don't send that engineer back right now, I'm going to be very angry. In fact, I'll sue you!"